Hello everyone. Welcome to LIVE text commentary of Der Klassiker, between Bayern Munich and Borussia Dortmund at the Allianz Arena. This is quite simply the biggest game in German football.

Dortmund are making an early change, with Gueirrero warming up. Unclear whether it's tactical or for injury at the moment. Sancho came into the game carrying an injury... we'll see in a moment.

Gnabry fires in a dangerous low cross that almost reaches Lewandowski, but Bürki is there. Dortmund can be thankful that their goalkeeper is having a good game.

Hakimi tries to send Götze on his way with a diagonal pass, but Pavard deals with it easily. Dortmund offering absolutely nothing at the moment.

Dortmund don't seem to know whether to press high or sit deep. Stuck between a rock and a hard place.

Smart pivot and shot by Gnabry and Bürki parries it away. Dortmund are under real pressure here. At the moment, it would be a miracle if they make it to half time only one goal down.

Chance for Bayern as Lewandowski cuts the ball back to Coman, whose shot is blocked on the line.

Meanwhile, it's a struggle for Dortmund. Individual mistakes meaning they just can't keep the ball. Bayern putting them under great pressure.

Bayern enjoying themselves out there. Coman goes past Hakimi with ease and produces a superb cross from the left, but it's centimetres too high for Gnabry, who had made a late run into the box.

Dortmund need to respond, but they also need to keep their heads. Bayern have demonstrated how ruthless they are, and the Bavarians have taken control now.

Lewandowski's goal means he maintains his extraordinary record of scoring in EVERY Bundesliga and Champions League game this season. Quite amazing.

GOAL! Bayern Munich 1-0 Borussia Dortmund - Lewandowski scores! An initial mistake by Sancho lets in Bayern, who work the ball out to Pavard and the Frenchman's cross is nodded in by Lewandowski.

Hakimi dispossessed by Alaba, who unleashes a swift counter-attack for Bayern. It breaks down but Bayern still have the ball...

Gnabry has a go with a volley, but it's an easy one for Bürki.

A missed opportunity for Dortmund as Sancho drives forward on the break, shapes to shoot but holds on to the ball a little too long and Bayern can get a foot in and make the clearance. Sancho had Dortmund players in support there too.

It's Dortmund who are playing with the greater confidence and composure at the moment. Of course, Bayern can break at and time but Dortmund are controlling things.

Alaba catches Götze late, but it's all laughs and smiles between the two former teammates.

Good running by Götze, who forces a corner off Martinez. The resulting corner from Hazard is headed clear. Dortmund applying some good pressure at the moment.

Coman launches a counter-attack for Bayern and immediately finds Lewandowski, who drives at the Dortmund defence but Hummels gets a foot in.

Sancho going head-to-head with Davies tonight. Both players are just 19.

Sancho gets into a good position but just runs out of space under pressure from Davies.

Coman again forced into some early defensive work after Hakimi pins him back.